Diphenylamine Phosphate Salt
Diphenylamine phosphate salt is the phosphate salt of diphenylamine, used as a flame retardant additive in polymers. It is classified under tariff item 2921.44.00 as a salt of diphenylamine, as chapter note 5 states that inorganic salts of organic compounds are classified in the heading appropriate to the organic compound.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
PGA flags (1)Show detailsHide detailsHCActive Pharmaceutical IngredientsMay be required
- HC
Active Pharmaceutical Ingredients · May be required
May require HC Active Pharmaceutical Ingredients depending on intended use (HC13) and Canadian product category (HC01). Matching criteria: Starts With 2921. Logic: MATCH IF (Valid HS Code) AND (Intended Use Code) AND (Valid Canadian Product Category).
CBSA Single Window matching criteria, unknown
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If sold as a flame retardant preparation for textiles or plastics
Finishing agents and flame retardant preparations may be classified under this heading.
If the salt is not specifically a diphenylamine salt
Other aromatic monoamine salts not covered by the diphenylamine subheading.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Confirm the stoichiometry of the phosphate salt, as different salts may have different classifications
• Provide the CAS number and chemical structure on the commercial invoice
• If the product is used as a flame retardant, consider whether it is more appropriately classified under heading 3809 or 3812
Related Products under Tariff item 2921.44.00
2,2'-Dihydroxydiphenylamine
2,2'-Dihydroxydiphenylamine is a diphenylamine derivative with hydroxy groups at the 2 and 2' positions relative to the nitrogen bridge, used as a photographic developer intermediate. It is classified under tariff item 2921.44.00 as a derivative of diphenylamine, which includes substituted diphenylamine compounds and their salts.
2,4-Dinitrodiphenylamine
2,4-Dinitrodiphenylamine is a nitro-substituted derivative of diphenylamine used as an intermediate in pharmaceutical and agrochemical production. It is classified under tariff item 2921.44.00 as a derivative of diphenylamine, provided it is a separate chemically defined compound.
2-Nitrodiphenylamine
2-Nitrodiphenylamine is a nitro derivative of diphenylamine with the nitro group at the ortho position. It is used in organic synthesis and as a rubber antioxidant, and is classified under tariff item 2921.44.00 as a diphenylamine derivative.
4,4'-Bis(α,α-dimethylbenzyl)diphenylamine
4,4'-Bis(α,α-dimethylbenzyl)diphenylamine is a sterically hindered aromatic amine used primarily as an antioxidant and stabilizer in rubber and polymer production. It is a derivative of diphenylamine, which falls under tariff item 2921.44.00, and is imported in bulk for industrial compounding.
4,4'-Di-alpha-cumyl Diphenylamine
4,4'-Di-alpha-cumyl Diphenylamine is a sterically hindered diphenylamine derivative acting as a premium antioxidant for natural and synthetic rubber. It is a diphenylamine derivative and falls under tariff item 2921.44.00.
4,4'-Dinitrodiphenylamine Technical Grade
Technical grade 4,4'-dinitrodiphenylamine is used in explosive manufacturing and as a corrosion inhibitor. While primarily dinitro, certain batches that are chemically defined as mononitro-dominant may fall under tariff item 2921.44.00 as diphenylamine derivatives.